Open Stack

It is managed by the scheduler. Admins can force a specific host by passing in availabilty zone like so:

nova boot --availability_zone nova:HOST

where HOST is the name of the host that you want it to boot on. Note that this will skip the scheduler altogether so it is possible to overallocate a host this way.

or an example post in json:

{
    "server" : {
        "name" : "new-server-test",
        "imageRef" : "70a599e0-31e7-49b7-b260-868f441e862b",
        "flavorRef" : "1",
        "availability_zone": "nova:HOST",
    }
}

Vish

On Dec 19, 2012, at 8:03 PM, tianwei zhang <artdream07 at gmail.com> wrote:

> Dear All:
> 
> I am a new user to Openstack. I have a question about nova compute:
> 
> When we want to run an instance, can we select a host to be assigned, or just a random one?  If we can select a specific one, how is this option passed into the create_instance function?
> 
> Could someone help me with this question?
> 
> Thanks a lot
> 
> Sincerely
> 
> Tianwei Zhang
> 
> _______________________________________________
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev